MAYBE MAYBE TRS: { eq() -> true(), eq() -> eq(), eq() -> false(), inf(X) -> cons(), take(0(), X) -> nil(), take(s(), cons()) -> cons(), length(cons()) -> s(), length(nil()) -> 0() } DUP: We consider a non-duplicating system. Trs: { eq() -> true(), eq() -> eq(), eq() -> false(), inf(X) -> cons(), take(0(), X) -> nil(), take(s(), cons()) -> cons(), length(cons()) -> s(), length(nil()) -> 0() } Fail